<template>
  <el-collapse-item
    title="数据来源（预览生效）"
    name="request"
    class="request-container"
  >
    <el-form>
      <el-form-item label="请求地址">
        <el-input
          v-model.trim="request.url"
          @blur="validateURL"
        >
          <template slot="prepend">
            HTTPS://
          </template>
        </el-input>
      </el-form-item>
      <el-form-item label="请求方法">
        <el-select v-model="request.method">
          <el-option
            v-for="item in methodOptions"
            :key="item"
            :label="item"
            :value="item"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="请求参数">
        <el-select
          v-model="request.paramType"
          placeholder="参数类型"
          @change="onChnage"
        >
          <el-option
            v-for="item in dataOptions"
            :key="item"
            :label="item"
            :value="item"
          />
        </el-select>
        <div
          v-if="request.paramType === 'array'"
          class="param-container"
        >
          <p>数据项</p>
          <div
            v-for="(item, index) in request.data"
            :key="index"
            class="div-delete"
          >
            <el-input
              v-model="request.data[index]"
              placeholder="请输入参数值"
            />
            <span
              class="iconfont icon-shanchu"
              @click="deleteData(index)"
            />
          </div>

          <el-button @click="addArrayData">
            添加
          </el-button>
        </div>
        <div
          v-else-if="request.paramType === 'string' || request.paramType === 'object'"
          class="param-container"
        >
          <p>数据项</p>
          <div
            v-for="(item, index) in request.data"
            :key="index"
            class="param-object-container"
          >
            <el-input
              v-model="item[0]"
              placeholder="参数名"
            />
            <el-input
              v-model="item[1]"
              placeholder="参数值"
            />
            <span
              class="iconfont icon-shanchu"
              @click="deleteData(index)"
            />
          </div>
          <el-button @click="addData">
            添加
          </el-button>
        </div>
      </el-form-item>
      <el-form-item label="定时触发">
        <el-switch v-model="request.series" />
        <template v-if="request.series">
          <p>触发间隔（毫秒）</p>
          <el-input
            v-model="request.time"
            type="number"
          />
          <p>触发次数（0 为无限）</p>
          <el-input
            v-model="request.requestCount"
            type="number"
          />
        </template>
      </el-form-item>
    </el-form>
  </el-collapse-item>
</template>

<script>
import { urlRE, getURL } from '@/utils/request';

export default {
  data() {
    return {
      methodOptions: [
        'GET',
        'POST',
        'PUT',
        'DELETE',
      ],
      dataOptions: [
        'object',
        'array',
        'string',
      ],
    };
  },
  computed: {
    request() {
      return this.$store.state.curComponent.request;
    },
  },
  methods: {
    addArrayData() {
      this.request.data.push('');
    },

    addData() {
      this.request.data.push(['', '']);
    },

    deleteData(index) {
      this.request.data.splice(index, 1);
    },

    onChnage() {
      if (this.request.paramType === 'array') {
        this.request.data = [''];
      } else {
        this.request.data = [['', '']];
      }
    },

    validateURL() {
      const { url } = this.request;
      if (url && /^\d+$/.test(url) || !urlRE.test(getURL(url))) {
        this.$message.error('请输入正确的 URL');
      }
    },
  },
};
</script>

<style lang="scss" scoped>
.request-container {
    .param-container {
        margin-top: 10px;

        .el-button {
            margin-top: 10px;
        }

        .param-object-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 4px;

            .el-input {
                width: 98px;
            }

            .el-button {
                margin: 0;
                margin-left: 8px;
            }
        }

        .div-delete {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 4px;

            .el-button {
                margin: 0;
                margin-left: 8px;
            }
        }
    }

    .icon-shanchu {
        cursor: pointer;
        margin-left: 10px;
    }
}
</style>
